ATMEGA32U2-AUR Atmel, ATMEGA32U2-AUR Datasheet - Page 231
![MCU AVR 32K FLASH 16MHZ 32TQFP](/photos/6/91/69154/313-32-tqfp_sml.jpg)
ATMEGA32U2-AUR
Manufacturer Part Number
ATMEGA32U2-AUR
Description
MCU AVR 32K FLASH 16MHZ 32TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32U2-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-TQFP, 32-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
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23.6.3
7799D–AVR–11/10
External Hardware conditions
is programmed, the Reset Vector will always point to the Boot Loader Reset and the fuse can
only be changed through the serial or parallel programming interface.
Table 23-4.
Note:
The Hardware Boot Enable Fuse (HWBE) can be programmed (See
special hardware conditions under reset, the bootloader execution is forced after reset.
Table 23-5.
Note:
When the HWBE fuse is enable the
pled during reset rising edge. When
will be set as the Boot Loader Reset address and the Boot Loader will be executed (See Figures
23-3).
BOOTRST
HWBE
1
0
1
0
1. “1” means unprogrammed, “0” means programmed
1. “1” means unprogrammed, “0” means programmed
Boot Reset Fuse
Hardware Boot Enable Fuse
Reset Address
Reset Vector = Application Reset (address 0x0000)
Reset Vector = Boot Loader Reset (see
Reset Address
PD7/HWB pin can not be used to force Boot Loader execution after reset
PD7/HWB pin is used during reset to force bootloader execution after reset
(1)
PD7
PD7
/HWB pin is ‘0’ during reset rising edge, the reset vector
/HWB pin is configured as input during reset and sam-
(1)
ATmega8U2/16U2/32U2
Table 23-8 on page
Table
239)
23-5) so that upon
231
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